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A257077 as a simple table

na(n)
12
21
33
42
51
63
77
82
96
101
113
129
1313
142
156
1612
171
183
199
2013
2115
222
236
2412
2520
261
273
287
299
3013
3127
322
338
3410
3520
3622
3728
383
397
4013
4119
4221
4331
4433
4537
462
4714
4826
4930
5032
5136
521
533
5413
5519
5625
5731
5833
5939
6043
612
6212
6326
6430
6532
6636
673
689
6919
7021
7125
7231
7339

[2,1,3,2,1,3,7,2,6,1,3,9,13,2,6,12,1,3,9,13,15,2,
 6,12,20,1,3,7,9,13,27,2,8,10,20,22,28,3,7,13,19,
 21,31,33,37,2,14,26,30,32,36,1,3,13,19,25,31,33,
 39,43,2,12,26,30,32,36,3,9,19,21,25,31,39]